The DP pumps are regarded as one of the best pumps for deep well. In fact they consist of two pumps connected in series, one is ejector-pump and the other is centrifugal pump. The ejector pump is lowered in well and connected to the centrifugal pump body by two pipes. These pumps are suitable for pumping clean water and chemically non-aggressive fluids. They are extremely reliable, economical and simple to use, finding many uses in domestic applications and the automatic distribution of water from small and medium-sized surge tanks form an automatic booster systems to supply water. The most remarkable character is that they can be used to supply clean water from extremely deep well. To ensure adequate counter-pressure, it is always to install a foot valve with a filter on the suction opening.
Pumps should be installed in a covered area, protected against the weather.

Operation limitations
Max ambient temperature up to 40℃
Max fluid temperature up to 40℃
Max pressure up to 10 bar

Construction Features
Pump Body: cast iron
Motor Housing: aluminum
Shaft: 45#steel /stainless steel
Impeller: brass/plastic
Motor: closed, externally ventilated
Insulation Class: B/F
Protection Class: IP44/IP54
Duty: continuously rated
Mechanical Seal: ceramic steatite/ metalized carbon

Type	Power		Ampere	Capacitor (µF)	R.P.M	Q.max (l/min)	H.max (m)	S.Head (M)	N.W(kg)	PACKAGE DIMENSION&GW
	HP	kW	220V-1 50Hz							A	B	H	Kg
DP255A	0.75	0.55	3.5	14	2850	40	35	15	15.7	410	200	220	16.5
DP355A	1	0.75	4.6	20	2850	42	38	25	16.8	410	200	220	17.6